Cab-lock foe mine-cages



W. A. LUBOLD.

CAR LOOK FOR MINE CAGES.

APPucAnou men AUG.3I| 1914.

1,195,045. PatentedAug. 15,1916.

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WILLIAM A. LUBOLD, OF GRATZ, PENNSYLVANIA.

GAR- LOCK FOR MINE-CAGES.

Specification of Letters Patent.

Patented Aug. 15, 1916.

Application filed August 31, 1914. Serial No. 859,480.

To all whom it may concern:

Be it known that I, IVILLIAM A. LUBOLD, a citizen of the United States, residing at Gratz, in the county of Dauphin, State of Pennsylvania, have invented certain new and useful Improvements in Car-Locks for Mine-Cages; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in mine cages, and particularly to devices carried thereby for holding the mine cars while the cage is being raised or lowered.

One object of the invention is to provide a novel device of this character which is automatically thrown into inoperative position when the cage is at the bottom of the shaft so as to permit the car to be quickly and easily moved onto the cage.

Another object is to provide a means operable by the car when it is moved onto the cage for actuating chock blocks.

A further object is to provide means for automatically releasing the chock blocks when the cage reaches the bottom of the shaft.

Other objects and advantages will be apparent from the following description, when taken in connection with the accompanying drawings.

In the drawings: Figure 1 is-a side elevation of a mining cage made in accordance with my invention. Fig. 2 is a top plan view, partly broken away. Fig. 3 is an end view of the cage. Fig. 4 is a transverse sec tion on the line of Fig. 2, looking in the direction of the arrows. Fig. 5 is a vertical longitudinal sectional view on the line 5 5 of Fig. 2, looking in the direction of the arrows. Fig. 6 is a section on the same line as Fig. 5, looking in the opposite direction. Fig. 7 is a detail enlarged view of certain of the parts of the invention.

Referring particularly to the accompany ing drawings, 10 represents the floor of the cage on which are secured the rail sections 11. Mounted outwardly of each of the rail sections, intermediate the lengths thereof are the housings 12 in each of which is disposed a chock block 13 arranged to be projected transversely across the tread of the rail. Pivotally connected to each of the blocks is a link li, each of said links having its other end suitably secured to a slidable member 15 disposed centrally between the tracks. Connected within the member 15 at one end and to the platform at its other end shaped lever 20, mounted adjacent to the other end of the cage. This second lever also has a vertically extending tappet 21. A leaf spring 22 is secured at one end to the platform, and has its other end coiled around the first named arm of the lever as shown at 23, both the said arm and the spring end being movable vertically within a guide 2 1. The end of the arm 20 which is connected to the lever 18 has a depending member 25 which is adapted to engage with one of the links 141 when said member 15 is pushed toward a point centrally on a line drawn through both of the blocks 13. In this position, the blocks are withdrawn within the housing so that the threads of the rail are free for the passage of the wheels of the car. Mounted in a guide 26 adjacent the spring 16 is a slidable rod 27, the inner end of which has a head 28 for engagement with one of the links 14 to push the same so as to cause the links to force the-blocks within the housings. The outer end of this rod is loosely engaged by the upturned end 29 of a lever 30 which is pivotally mounted at one end of the platform and is arranged to engage with a block 31 in the bottom of the shaft.

When the cage is at the bottom of the shaft, the parts will be in the position shown in Fig, 2. In this position the car can be readily run onto the track on the platform. As the car moves onto the platform, one of the arms 32 shown as depending from the car will engage one of the tappets which will be moved to release the mechanism, thus permitting the spring 16 to draw all the links 14, thus drawing the blocks 13 across the rails and between the wheels of the car. The arms 32 are hinged to the car as shown at 32 for movement toward the ends of'the car only. Thus the car is prevented from moving on the rails while the cage is being lifted.

What is claimed is:

The combination with a mine cage having rails thereon, of chock blocks mounted for movement into and out of position to extend cross the rails links pivoted to the blocks at their outer ends and pivotally connected at their inner ends a spring secured to the cage ann connected with the links at their point of pivotal connection and arranged to hold the links yieldably at an angle to each other with the blocks across the rails a lever pivoted upon the cage at the side of the links in the direction of their movement un der the action of the spring, said lever having a portion arranged to engage one of the links at a point to hold it against movement by the spring, said lever being movable upon its pivot for disengagement of the lever from the link, a second lever pivoted upon the cage for vertical movement at the opposite side of the links from the first named lever and having a portion engaged with the first lever for movement of the first lever vertically by the second lever, upwardly projecting portions carried by the levers for movement of said levers vertically when the up wardly projecting portions are moved toward the horizontal, a member slidably mounted on the cage in position for engagement of one of the links adjacent to its inner end for movement oi the links against action of the sprin and means projecting below the cage for moving the slidably mounted member.

In testimony whereof I affix my signature in the presence of two witnesses.

lVILLL-XM A. LUBOLD. lVitnesses HARRY A. UMIIOLTZ, A. S. RITZMAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Yatents. Washington, D. C. 

